Q: What is the sum of all factors of the number 30,989 excluding 30,989?

 A: 6,451

Why is 6,451 the sum of all factors of 30,989, excluding 30,989?

The factors of the number 30,989 are: 1, 7, 19, 133, 233, 1631, 4427, 30989.

If you add them up, you will get the total of 30,995. Now subtract 30,989 to get 6,451


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